Key dates in U.S. military moves near North Korea

A US Air Force soldier (L) talks to South Korean soldiers during annual joint exercises south of Seoul, on March 14.

Amidst North Korea's ongoing verbal salvos, the United States has made a show of military strength in the annual drills taking place in the Korean Peninsula.

Here are the key dates:

March 8: US flies B-52 bombers over South Korea

The Cold War-era bombers flew out of Andersen Air Force Base in Guam as part of what the U.S. Pacific Command called a routine mission to highlight a "continuous bomber presence" in the region. A second fly-over was planned for March 26.

The exercise -- the 2nd in a month -- was a routine mission meant to "reiterate the U.S. commitment to the security of our allies and partners," according to the Pentagon.

March 28: US flies nuclear-capable B-2 Spirit bombers over South Korea

The stealth bombers flew from Whiteman Air Force Base in Missouri to drop inert munitions as part of annual joint US-South Korea military exercises. The US military said the mission demonstrated "the United States' ability to conduct long range, precision strikes quickly and at will."